What planets have gases?

Answer 1

1. Venus - mostly carbon dioxide, methane, and sulfuric acid.
2. Earth - mostly nitrogen and oxygen.
3. Mars - mostly carbon dioxide.
4. Jupiter - mostly hydrogen and methane.
5. Saturn - mostly hydrogen and methane.
6. Uranus - mostly hydrogen and methane.
7. Neptune - mostly hydrogen and methane.

Answer 2

The textbook answers is "Gas giants." However, that isn't entirely accurate. Gas giants are made of elements that are gaseous under low pressure. However, most gas giants are so large that they actually have a surface of high-pressure liquid, often hydrogen and helium. Jupiter, for example, has two known oceans, one atop the other, of liquid hydrogen (it's liquid because the pressure, from gravity, is so intense).

Answer 3

The four inner, rocky planets are also known as the terrestrial planets. These are; Mercury, Venus, Earth and Mars. The four outer, or gas planets; Jupiter, Saturn, Uranus and Neptune. They are mainly made up of Hydrogen and Helium gas.

Answer 4

The four outer, or gas planets, are; Jupiter, Saturn, Uranus and Neptune. They are mainly made up of Hydrogen and Helium gas.

Answer 5

Earth, Mercury, Venus and Mars are mainly solid.

Jupiter, Saturn, Uranus and Neptune are called "gas giant" planets.

Answer 6

In our solar system the outer planets Jupiter, Saturn, Uranus and Neptune are mostly gas, hence their identification as "gas giants."

Answer 7

The gas giants Jupiter, Saturn, Uranus and Neptune. Extraterrestrially, most of the planets discovered thus far are also gas giants (or gas super giants).

Answer 8

Jupiter, Saturn, Uranus, and Neptune.

Answer 9

Jupiter, Saturn, Uranus and Neptune.